11515880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:330

約数の個数: 64

約数和(自身を含む): 27578880

約数和(自身を除く): 16063000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 62, 74, 124, 148, 155, 185, 248, 251, 296, 310, 370, 502, 620, 740, 1004, 1147, 1240, 1255, 1480, 2008, 2294, 2510, 4588, 5020, 5735, 7781, 9176, 9287, 10040, 11470, 15562, 18574, 22940, 31124, 37148, 38905, 45880, 46435, 62248, 74296, 77810, 92870, 155620, 185740, 287897, 311240, 371480, 575794, 1151588, 1439485, 2303176, 2878970, 5757940, 11515880]

約数ペア:

[(1, 11515880), (2, 5757940), (4, 2878970), (5, 2303176), (8, 1439485), (10, 1151588), (20, 575794), (31, 371480), (37, 311240), (40, 287897), (62, 185740), (74, 155620), (124, 92870), (148, 77810), (155, 74296), (185, 62248), (248, 46435), (251, 45880), (296, 38905), (310, 37148), (370, 31124), (502, 22940), (620, 18574), (740, 15562), (1004, 11470), (1147, 10040), (1240, 9287), (1255, 9176), (1480, 7781), (2008, 5735), (2294, 5020), (2510, 4588)]